Apparatus for mechanically cleaning the material in use with concrete structures



Jam/30., 1923.

APPARATUS FOR MECHANICALLY CLEA FIL-.21.

W. (1.1. MELGERS.

NING THE MATERIAL lN USE WITH CONCRETE STRUCTURES.`

-FILED MAY19,1919.

2 SHEETS--SHEET l.

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' Jan. 30,1923. 1,443,426.

W. 0.1. IVIIELGEIIS.v

APPAATUS FOR MECH/INICALLY CLEANING THE MATERIAL IN USE WITH CONCRETESTRUCTURES.

A FILED MAY 19, 19I9. 2 SHEETS-SHEET 2| lin/@1751013 Patentedjan. 30,1923.

WILHELMUS `CHRS'ILIAAN' JOHANNES MEJGERS, OF AMSTERDAM, NETERLANDS. y

APPARATUS FOR MECHANICALLY cnnanive @Humanisme-nin use WITH CONCRETE'sTn-Uc'runns. fr. j

Application filedv May 19, 1919."`Se1ia131\o. 298,346.,

To all uihom t v,may concern.'

IBe it known thatl, VVrLHnLMUs Cnnis'- ',riAAN JoHANNnslVlniienns, asubject ci the `Queen 'of the Netherlands, residing at Anisteijdam, theNetherlands, have invented certain new andv u'seiul Improvements in' Ap!paratus for Mechanically Cleaning the l aterial in Use with ConcreteStructures, of

` ai'ter' the plates or sheets constituting the mould have vbeenstrippedofl', to remove the layer-'oit' concrete,` which has stuck tothe plater or sheet, by nieansoiF` scrapers or simil'arsimp'le tools. s

This process is however very expensive andv unsatisfactory results areoften jobtained, owing to the articles not being periectly cleaned. l

Bythe usevot` the present process and apparatus, the articlewhicli hasto be cleaned,

`ducedto the `lowestpossible amount.

'lfliepi'ocess consists in passing the article between groo ved rollersor the like, by means oi Yv'vhich the concrete or similar material is`reduced to small pieces and in then passing the articleuuder Scrapers,knives or the like, which remove the pulverized concrete or cement.rllhe article may be linally conveyed under a planing apparatus, whicheii'ects a :further cleaning.thereof The apparatus for carrying out theprocess consists of a ytable or foundation, provided with, an adjustabletop, below and above which a grooved roller or similar device ismounted.v Behind these is mounted another roller, which is provided withsharp ribs, knives or similar tools. j Behind this` The planingapparatus consists oi.t a box or casing at lthe bottom of which arecarried irons, knives, or similar tools. These may be arranged in aslanting direction and project through slots at the bottom. They may4The accompanying drztwingfA shows y,one constructional form ofapparatus, made according to the invention. y, y.

Fig. l is anelevation of the apparatus, which may be used for carryingout, the

process.'

Fig. 2 represents a section and part elevation of the planing apparatus.

, F ig. planing apparatus.

Fig. 4 a section and part-elevation `oi' the plane fitted for hand use.l

The apparatus consistsxof a foundation or table l, running on wheels.The upper portion 2 of the said table isadjustable in the verticaldirection, in any suitable mannernas by means oi adjustingscrews.

Mounted at the front of the vapparatus are two grooved rollers 3, oneaboveand one below the adjustabley top QQ y Behind these rrollers isanother roller fl, provided with knives,"scrapei's or theflille, andfurther behind be placed the planing apparatus 5, which is only usedwhen the article requires a more complete cleaning.

The apparatus maybe actuated by an electric motor, driving through ,atransmission gear 6. If Vrequired it mayl also beoperated by hand. Thegear `G actuates the rollers 3 and t by means of belts orr chains 75 assshown It also produces the reciprocating 'movement ior. the `planingapparatus, throughtlie yintervention oi a` connecting rod 8.

`The process of cleaning ried out as followsz-- f The sheetings or thelike, which have to be be cleaned, are pressed, after the apparatus thearticle is carhas been` set in motion, between the rollers 3,

which breaks up into small pieces orpulverizes the concrete, cementorf'the like ad-` hering to the surface. The articles are then passedunder the roller el, which is provided, as previously stated, withknives or Scrapers, which remove `the concrete vlayer almost completely.if a more thorough cleaning is required, the sheetings are then passedor placed under the reciprocating planing apparatus 5. y f

This apparatus, see Fig. 2, comprises a casing 9. the bottom of whichforms the underside of the plane. At the bottom are slots arranged in aslantingv direction, through which project the bars 1U, which may becross-shaped irons as shown. 'lhe irons maybe iXed in position in thecasing 9 by means of a block 11 itting into the said casing, the saidblock being provided With the necessary recesses to receive the crossshaped irons or chisels 10. i The block may be Xed or clamped inposition by a bridgev piece or clip 12, iurnished With a screw 13 orsome equivalent device,l asshoWn at Fig. 4. It is also to be observedthat the planing apparatus may be arranged to be operated by hand, byfitting handles 14 thereto.

From the foregoing description, taken in connectionA with theaccompanying draW-' ings, the construction and' operationfoit theinvention will be readily understood Without requiring amore extendedexplanation. v

Various changes in the form, proportion andthe minor details ofconstruction may be resorted to Without depart-ing from the principle orsacrificing any of the advantages of this invention as deined intheappended claims.

What I` claim as my invention and desire to secure by Letters Patent is:

1. An apparatus for mechanically clean- Y ing sheets, plates, boards,and other articles used in concrete construction, comprising a pair ofgrooved rollers between which such articles are passed to break up theconcrete or similar material adhering thereto, scraping lrollers forremoving the pulverized material, a movable planing apparatus forturther cleaning the surface of the articles, and common driving meansfor .the rollers and planing apparatus. 4 2. In an apparatus forcleaning articles used in concrete construction, a table or base havinga supporting top, grooved rollers yabove and belon7 the top for engagingan article supported by the base, another roller With sharp cuttingedges mounted in the 'l base beyond the grooved rollers forengag" ingarticles moved along the top, a planing apparatus mounted on the basefor next engaging articles on the said top and common driving means foroperating the rollers and reciprocating the planing apparatus.

3. Inan apparatus for cleaning articles used in making concrete forms,a` planing appartus consisting of a casing with slanting slots `in thebottom thereof, planing devices extending through the slots, a blockabove 'the planing devices in the casing, and means :tor holding theblock in the casing, said mea-ns comprising a bridge piece and anengaging screw extending through the bridge piece againstv the block.

An apparatus for Acleaningboa'rds for concrete iorms, comprising asupporting table, a paircf coacting rollers adapted to 6. l'n anapparatus for cleaning boards used in making concrete forms, a pairofgrooved rollers engaging above and below the board for breaking upmaterial adhering to the surfaces thereof, another tooled roller forengaging the board and further removing material therefrom, areciprocably movable planing device :tor smoothing oliE the surface oitthe board, and common means fory operating the rollers and the planingdevice at the` same time.

signature.

WILHELMUS CHRISTIAAN JOHANNES MELGERS.

ln testimony whereof Iv have affixed myv

